Physics
A 60 kg high jumper lands on a foam pit and comes to rest. If the pit is able to exert an average force of 600 N on the high jumper in breaking the fall, what is the jumper’s acceleration? June 19, 2012 by Estefani

physics
A bungee jumper falls for 1.3 seconds before the bungee cord begins to stretch. Until the jumper has bounced back up to this level, the bungee causes the jumper to have an acceleration upward of 4 m/s2. a. How fast is the jumper going when the bungee cord begins to stretch? (...September 6, 2011 by randa

physics
A jumper of mass m=55 kg starts in a crouched position with the jumper's center of mass at a position y1=0 m. Just before the jumper leaves the floor, his or her center of mass is at y2=0.7 m. From another measurement, you have found that the velocity of the jumper's center of...July 26, 2014 by Zoey

physics
A high jumper, falling at 3.8 m/s, lands on a foam pit and comes to rest compressing the pit 0.38 m. If the pit is able to exert an average force of 1100 N on the high jumper in breaking the fall, what is the jumper's mass?January 5, 2012 by Amy

physics
A bungee jumper jumps from a bridge with a 3 m long bungee cord. Once the cord starts to stretch, it acts like an ideal spring with coefficient of elasticity k=100 N/m. What should be the minimum height of the bridge in m so that this jump is safe for the jumper? Details and ...July 23, 2013 by Steven

Physics..Urgent!!!
In the sport of pole vaulting, the jumper's point of mass concentration, called the centre of mass, must clear the pole. Assume that a 59 kg jumper must raise the centre of mass from 1.1 m off the ground to 4.6 m off the ground. What is the jumper's potential energy at the top...April 9, 2011 by Anonymous

Physics
At a track and field meet, the best long jump is measured as 8.30 m. The jumper took off at an angle of 31 ° to the horizontal. What was the jumper’s initial speed?September 21, 2016 by Bex

physics
An Olympic long jumper leaves the ground at an angle of 18.7 ° and travels through the air for a horizontal distance of 7.04 m before landing. What is the takeoff speed of the jumper?September 19, 2014 by S

Physics
A bungee jumper makes a jump into the Gorge du Verdon in southern France from a platform 182 m above the bottom of the gorge. The jumper weighs 740 N and comes within 66 m of the bottom of the gorge. The cord's unstretched length is 30.0 m. (a) Assuming that the bungee cord ...April 5, 2011 by Meisha

physics
An Olympic long jumper leaves the ground at an angle of 23 degrees and travels through the air for a horizontal distance of 8.7 meters before landing. What is the takeoff speed of the jumper?July 31, 2008 by penkey

Physics
A 63.0-kg bungee jumper is standing on a tall platform (h0 = 45.8 m). The bungee cord has an unstrained length of L0 = 9.18 m and, when stretched, behaves like an ideal spring with a spring constant of k = 67.2 N/m. The jumper falls from rest, and it is assumed that the only ...November 30, 2011 by Anne

Physics
A 63.0-kg bungee jumper is standing on a tall platform (h0 = 45.8 m). The bungee cord has an unstrained length of L0 = 9.18 m and, when stretched, behaves like an ideal spring with a spring constant of k = 67.2 N/m. The jumper falls from rest, and it is assumed that the only ...November 30, 2011 by Anne

AP Physics B
A 63.6-kg bungee jumper is standing on a tall platform (h0 = 50.6 m). The bungee cord has an unstrained length of L0 = 9.54 m and, when stretched, behaves like an ideal spring with a spring constant of k = 67.8 N/m. The jumper falls from rest, and it is assumed that the only ...November 29, 2012 by Alexis

Physics Urgent!!
a bungee jumper is falling at a velocity of 2m/s [down] when the bungee cord just starts to stretch. after the cord stretches for 2.5s, the velocity is 11m [down]. assume that the acceleration is at constant. a) what is the acceleration of the jumper? b) what is the total time...February 22, 2015 by emily

physics
A 61.0 -kg bungee jumper is standing on a tall platform (h0 = 46.0 m), as indicated in the figure. The bungee cord has an unstrained length of L0 = 9.00 m, and when stretched, behaves like an ideal spring with a spring constant of 76.0 N/m. The jumper falls from rest, and it ...November 25, 2014 by tony

Physics - bungee jumping
In a head dip bungee jump from abridge over a river, the bungee cord is fastened to the jumpers ankles. The jumper then steps off and falls towards the river until the cord becomes taut. At that point, the cord begins to slow the jumper's descent, until his head just touches ...December 4, 2010 by Farah

Physics
The Royal Gorge bridge over the Arkansas River is 310.0 m above the river. A 59.0-kg bungee jumper has an elastic cord with an unstressed length of 62.0 m attached to her feet. Assume that, like an ideal spring, the cord is massless and provides a linear restoring force when ...February 17, 2013 by John

physics
At a track-and-field meet, the best long jump is measured as 8.00 m. The jumper took off at an angle of 46° to the horizontal. (a) What was the jumper’s initial speed? (Neglect air resistance.) 1 m/s (b) If there were another meet on the Moon and the same jumper could ...October 20, 2011 by joe

physics -PLS HELP ASAP
a bungee jumper is falling at a velocity of 2m/s [down] when the bungee cord just starts to stretch. after the cord stretches for 2.5s, the velocity is 11m [down]. assume that the acceleration is at constant. a) what is the acceleration of the jumper? b) what is the total time...February 22, 2015 by EMILY

Physics
A long jumper leaves the ground at an angle of 20 degrees and travels a horizontal distanceof 7.0m before landing. What is the takeoff speed of the jumper? To be honest I really don't know how to solve it. A step-by-step explantion would be helpful. October 5, 2010 by George

Physics Classical Mechanics
A bungee jumper jumps (with no initial speed) from a tall bridge attached to a light elastic cord (bungee cord) of unstretched length L. The cord first straightens and then extends as the jumper falls. This prevents her from hitting the water! Suppose that the bungee cord ...October 21, 2013 by Anonymous

physics
a high jumper approaches the takeoff point at a speed of 7.20 m/s. Assuming that only this speed determines the height to which he can rise, find the maximum height at which the jumper can clear the bar. October 9, 2014 by Anonymous

Physics
A long jumper leaves the ground with an initial velocity of 12 m/s at an angle of 28-degrees above the horizontal. Determine the time of flight, the horizontal distance, and the peak height of the long-jumper.February 26, 2013 by Dan

physics
a bungee cord jumper jumps off the new river bridge. the bridge is 876 feet high. How fast is the jumper falling when he reaches 200 feet above the ground?May 16, 2012 by Anonymous

physics
A 61.0 -kg bungee jumper is standing on a tall platform (h0 = 46.0 m), as indicated in the figure. The bungee cord has an unstrained length of L0 = 9.00 m, and when stretched, behaves like an ideal spring with a spring constant of 76.0 N/m. The jumper falls from rest, and it ...November 25, 2014 by ty

physics -jumper
The feet of a standing person of mass m exert a force equal to mg on the floor, and the floor exerts an equal and opposite force upwards on the feet, which we call the normal force. During the extension phase of a vertical jump, the feet exert a force on the floor that is ...June 4, 2010 by lau

physic
Bungee Jumping. A bungee jumper jumps from a tall bridge attached to a light elastic cord (bungee cord) of unstretched length L. The cord first straightens and then extends as the jumper falls. This prevents her from hitting the water! Suppose that the bungee cord behaves like...October 20, 2013 by Anonymous

Math/Physics
A bungee jumper bounces up and down at thhe end of a bungee cord with a fairly consstant amplitude of 10m and a period of 5 s. At her lowest point, the jumper is 5m above the ground. Is this Periodic or non periodic? What is the reason? Draw the graph.November 3, 2010 by Mansy

Physics
A bungee jumper (m = 66.00 kg) tied to a 39.00 m cord, leaps off a 69.00 m tall bridge. He falls to 5.00 m above the water before the bungee cord pulls him back up. What size impulse is exerted on the bungee jumper while the cord stretches?March 18, 2013 by Hilary

Physics
A bungee jumper (m = 66.00 kg) tied to a 39.00 m cord, leaps off a 69.00 m tall bridge. He falls to 5.00 m above the water before the bungee cord pulls him back up. What size impulse is exerted on the bungee jumper while the cord stretches?March 18, 2013 by Hilary

science
A bungee jumper jumps (with no initial speed) from a tall bridge attached to a light elastic cord (bungee cord) of unstretched length L. The cord first straightens and then extends as the jumper falls. This prevents her from hitting the water! Suppose that the bungee cord ...October 22, 2013 by mechanics

physics
An 73-kg bungee jumper is enjoying an afternoon of jumps. The jumper's first oscillation has an amplitude of 14 m and a period of 6 s. sprint constant is 80.1 n/m and max speed is 14.7 m/s. Treating the bungee cord as a spring with no damping, calculate each of the following: ...March 27, 2012 by please help

Physics
A bungee jumper of mass 60 kg jumps from a bridge tied to an elastic rope which becomes taut after he falls 10 m. Consider the jumper when he has fallen another 10 m and is travelling at 15 m/s. Work out how much energy is stored in the rope. Take g=10 m/s^2 and ignore air ...December 17, 2010 by anon

Physics
A high-jumper clears the bar and has a downward velocity of -6.00 m/s just before landing on an air mattress. The mass of the high-jumper is 50.4 kg. What is the magnitude and direction of the impulse that the air mattress exerts on her? Assume that upward is the positive ...February 29, 2012 by Candy

Physics(Please help)
A high-jumper clears the bar and has a downward velocity of -6.00 m/s just before landing on an air mattress. The mass of the high-jumper is 53.7 kg. What is the magnitude and direction of the impulse that the air mattress exerts on her? Assume that upward is the positive ...June 3, 2012 by Hannah

physics
A ski jumper starts with a horizontal take-off velocity of 25m/s and lands on a straight landing hill inclined at 30 0 . Determine (a) the time between take-off and landin. (b) The length 'd' of the jump. (c) The maximum vertical distance between the jumper and the landing hill.April 16, 2015 by Anonymous

Physics
A jumper in the long-jump goes into the jump with a speed of 10m/s at an angle of 30 degrees above the horizontal. Use g=10m/s. a) how long in the air is the jumper before returning to the Earth? b) How far does the jumper jump? for a) I got .001s as the answer which logically...September 25, 2007 by Tammy

Physics
A jumper in the long-jump goes into the jump with a speed of 10m/s at an angle of 30 degrees above the horizontal. Use g=10m/s. a) how long in the air is the jumper before returning to the Earth? b) How far does the jumper jump? for a) I got .001s as the answer which logically...September 26, 2007 by Tammy

Physics
A bungee jumper runs off a platform and falls 40m before his bungee cord begins to stretch. Once the bungee cord begins to stretch his velocity slows by 20 m/s in 12m. If the mass of the bungee jumper is 55kg, what is the average force the bungee applies on him?December 6, 2016 by A

Physics GR12
A bungee jumper of mass 75kg is stadnding on a platform 53m above a river. The length of the unstretched bungee cord is 11m. The spring costant is 65.6N/m. Calculate the jumper's speed at 19m below the platform on his first fall. [Also, please state which height you usd and ...December 4, 2013 by Sophie

chemistry
A bungee jumper is standing at the edge of a platform, just about to leap over the side. Midway through the jump, while the bungee jumper is halfway down to the ground, what is the relationship between potential and kinetic energy? June 17, 2011 by mireli

physics
Extreme-sports enthusiasts have been known to jump off the top of El Capitan, a sheer granite cliff of height 910m in Yosemite National Park. Assume a jumper runs horizontally off the top of El Capitan with speed 5.0m/s and enjoys a freefall until she is 150m above the valley ...April 21, 2012 by JOEY

physics
An 73-kg bungee jumper is enjoying an afternoon of jumps. The jumper's first oscillation has an amplitude of 14 m and a period of 6 s. the spring constant of the bungee cord is 80.1 and max speed during oscillation is 14.7 m/s Treating the bungee cord as a spring with no ...March 25, 2012 by hania

Math
A bungee jumper falls from a bridge 300 feet above ground. Her height above ground after t seconds is given by the equation h=16t^2+300 where h is the height of the jumper in feet and t is the time in seconds after she jumps. Approximately how long will it take for the bungee ...November 6, 2014 by Na"talyannie

Physics
A long jumper takes of at an angle of 20 degrees and a speed of 11.0 m/sec. The max height achieved is 0.722 meters an the max length is 7.94 meters. At what angle and speed would the jumper have to take off to get the same max length, but twice the max height? August 31, 2012 by Kim

Physics
A 50.0 kg parachutist jumps out of an airplane at a height of 1.00 km. The parachute opens, and the jumper lands on the ground with a speed of 5.00 m/s. By what amount was the jumper's mechanical energy reduced due to air resistance during this jump? so, you have to take the ...December 5, 2006 by Becca

Physics
1.A 60.2 kg bungee jumper jumps from a bridge. She is tied to a 13.8 m long bungee cord and falls a total of 34.4 m. Calculate the spring constant k of the bungee cord. 2.Calculate the maximum acceleration experienced by the jumper. Im stuck on the first because Im not sure ...October 27, 2007 by Britney

human anatomy
one day, at the high jump mat, Lucy,a 4'4 jumper, asks Georgina, a 5' jumper."When running here,breathing doesn't really count right? I mean we're only going less than 50 meters. What difference does it make if we hold our breath?" Georgina sighs and prepares herself for a ...May 11, 2010 by taryn

PHYS
A bungee jumper (m = 61.00 kg) tied to a 45.00 m cord, leaps off a 75.00 m tall bridge. He falls to 5.00 m above the water before the bungee cord pulls him back up. What is the magnitude of the impulse exerted on the bungee jumper as the cord stretches? Can anyone show me how ...November 4, 2010 by LEON

Math
The Height of a ski jumper, 'h' in meters is given by the equation h=-4.9t^(2)+0.5vt+8 where 't' is measured in seconds after leaping from the ramp and 'v' is his/her speed at the time of the jump. a)If the jumpers' maximum height is reached is 16 m, determine the initial ...November 5, 2012 by May

PHYSICS
The object of the long jump is to launch oneself as a projectile and attain the maximum horizontal range (Fig. 3–26). Here we shall treat the long jumper as a particle even though the human body is fairly large compared to the size of the trajectory. Actually there is one ...May 19, 2013 by Anonymous

PHYSICS
The object of the long jump is to launch oneself as a projectile and attain the maximum horizontal range (Fig. 3–26). Here we shall treat the long jumper as a particle even though the human body is fairly large compared to the size of the trajectory. Actually there is one ...May 19, 2013 by Anonymous

PHYSICS
The object of the long jump is to launch oneself as a projectile and attain the maximum horizontal range (Fig. 3–26). Here we shall treat the long jumper as a particle even though the human body is fairly large compared to the size of the trajectory. Actually there is one ...May 19, 2013 by Anonymous

physics
A long jumper jumps with the initial velocity of 12.0 m/s at an angle of 20 degrees. what is the displacement of x?November 5, 2010 by DJ

Physics
A long jumper leaves the ground at an angle of 24.3◦ to the horizontal and at a speed of 10.6 m/s. How far does he jump?November 16, 2012 by Jack

physics(help me with the angle)
In the 1968 Olympic Games, University of Oregon jumper Dick Fosbury introduced a new technique of high jumping called the "Fosbury flop." It contributed to raising the world record by about 30 cm and is presently used by nearly every world-class jumper. In this technique, the ...April 1, 2010 by phys

physics
An athlete executing a long jumper leaves the ground at a 27.0 degree angle and travels 7.89 m. What was the takeoff speed? September 21, 2010 by sara

physics
A long jumper jumps at a 20 degree angle and attains a maximum altitude of .6 m. a)what is her initial speed? b)How far is her jump?September 14, 2010 by Anonymous

math nid this asap tyy
(Velocity and acceleration.) The acceleration of gravity on the surface of the Moon is a = 1.6 m/s2, as opposed to g = 9.8 m/s2 on Earth. An Olympic high-jumper can jump to about 2.35 m on the surface of the Earth. What height could an Olympic high-jumper reach on the surface ...May 4, 2016 by Than

physics
A long jumper leaves the ground at an angle of 22.1◦ to the horizontal and at a speed of 10 m/s. How far does he jump? The acceleration due to gravity is 9.8 m/s2 . Answer in units of mOctober 20, 2011 by matt

physics
a long jumper takes off at an angle of 20 degrees with the horizontal and reaches a maximum height of 0.55 meters at mid- flight. how far did she jump?June 27, 2014 by kristen

physics
A 65.5 kg high jumper leaves the ground with a vertical velocity of 8.1 m/s. How high can he jump? The acceleration of gravity is 9.8 m/s2 .December 1, 2015 by BROOKE

physics(I'm taking a different way to solve)
In the 1968 Olympic Games, University of Oregon jumper Dick Fosbury introduced a new technique of high jumping called the "Fosbury flop." It contributed to raising the world record by about 30 cm and is presently used by nearly every world-class jumper. In this technique, the ...April 10, 2010 by phys

physics help please
A long jumper leaves the ground at an angle of 25.2 to the horizontal and at a speed of 11.2 m/s. How far does he jump? The acceleration due to gravity is 9.8 m/s2 . Answer in units of m What maximum height does he reach?October 24, 2011 by anon

physics
A long jumper leaves the ground at an angle of 24.4◦to the horizontal an data speed of 9.52m/s.How far does he jump?The acceleration due to gravity is 9.8m. What maximum height does he reach?October 23, 2014 by sandy

physics
In order for a ski jumper to attain maximum projectile distance she must reach a velocity of 30m/s. of the runway of the takeoff ramp is 70m long, how quickly ust she accelerate?February 25, 2013 by Mark

Physics Honors
A football is kicked with an initial velocity of 25 m/s at an angle of 45 degrees with the horizontal . Determine the time of flight, the horizontal distance, and the peak height of the long jumper.October 23, 2011 by Allison

physics
An athlete executing a long jumper leaves the ground at a 27.0 degree angle and travels 7.89 m. What was the takeoff speed? If this speed were increased by just 5.0%, how much longer would the jump be? September 21, 2010 by cindy

physics
A long jumper leaves the ground at an angle of 25.2 to the horizontal and at a speed of 11.2 m/s. How far does he jump? The acceleration due to gravity is 9.8 m/s2 . Answer in m What maximum height does he reach? Answer in units of mOctober 24, 2011 by anonymous

Physics
A broad jumper begins his jump at an angle of 22 f degrees from the horizontal at the middle of the jump he reaches a height of 70m ANSWER: 9.16m/s Relevant Formulas: dv=1/2at^2...dh=vht...t=vv/a.. October 25, 2012 by Loratadine

math/ physics
An athlete executing a long jumper leaves the ground at a 27.0 degree angle and travels 7.89 m. What was the takeoff speed? If this speed were increased by just 5.0%, how much longer would the jump be? September 22, 2010 by sara

Physics
a long jumper jumps 10m and leaves the ground at an angle of 45 degrees.determine the speed he leaves the the ground at,September 22, 2010 by Rich

physics
It is important to be as far away from the cliff as possible before opening the parachute. How far from the cliff is this jumper when she opens her chute? October 11, 2013 by jessie

Physics
An Olympic long jumper is capable of jumping 8.3 m. Assume that his horizontal speed is 9.5 m/s as he leaves the ground. He was in the air for .87 seconds. How high does he go assuming that he lands upright, the same way he was when he left the ground?October 17, 2011 by Tina

physics
A baseball is hit with a speed of 27 meters per second at an angle of 45 degrees. It lands on the flat roof of a 13 meter tall building. If the ball was hit when it was 1 meter above the ground, what horizontal distance does it travel before it lands on the building? A long ...November 23, 2011 by Bart

Physics
A long jumper jumps at a 45 degree angle towards the right bank which is 10.0 m away horizontally and 2.5 m vertically below. How long, or short, of the opposite bank will she land?September 7, 2010 by Bob

physics
A Nordic jumper goes off a ski jump at an angle of 10.0° below the horizontal, traveling 92.0 m horizontally and 47.0 m vertically before landing.; (a) Ignoring friction and aerodynamic effects, calculate the speed needed by the skier on leaving the rampSeptember 19, 2012 by lib

Physics
An 60kg athlete wants to jump over a 2 m bar. How fast must she go the moment her foot leaves the ground in order to get her centre of mass up so high? I set KE of jumper to PE at top of bar to get 6.26m/s. Am I on the right track?April 19, 2009 by Brigid

Physics
A ski jumper glides down a 30.0 degrees slope for 80.0 ft before taking off from a negligibly short horizontal ramp. If the jumpers takeoff speed is 45.0 ft/s, what is the coefficient of kinetic friction between skis and slope?December 18, 2015 by Khalid

Physics
A Nordic jumper goes off a ski jump at an angle of 10.0° below the horizontal, traveling 109.0 m horizontally and 44.0 m vertically before landing. (a) Ignoring friction and aerodynamic effects, calculate the speed needed by the skier on leaving the ramp.September 16, 2013 by Kelsey

Physics
A Nordic jumper goes off a ski jump at an angle of 10.0° below the horizontal, traveling 109.0 m horizontally and 44.0 m vertically before landing. (a) Ignoring friction and aerodynamic effects, calculate the speed needed by the skier on leaving the ramp.September 18, 2013 by Kelsey

Physics
A Nordic jumper goes off a ski jump at an angle of 10.0° below the horizontal, traveling 109.0 m horizontally and 44.0 m vertically before landing. (a) Ignoring friction and aerodynamic effects, calculate the speed needed by the skier on leaving the ramp.September 19, 2013 by Kelsey

physics
A ski jumper leaves a slope at an angle of 20.0 degrees above the horizontal direction. She lands 3.50 seconds later at a point 20.0 meters below her take-off point. (a) What was her initial speed? (b) How far does she travel horizontally? February 7, 2016 by tom

physics
A long jumper leaves the ground at an angle of 20.8 ◦ to the horizontal and at a speed of 10.3 m/s. How far does he jump? The acceleration due to gravity is 9.8 m/s 2 . Answer in units of m and What maximum height does he reach? Answer in units of October 23, 2011 by norma

physics
At the 2004 Olympic Games in Athens, Dwight Phillips won the gold medal in men’s long jump with a jump of 8.59 m. If the angle of his jump was 23°, what was his takeoff speed? (Treat the jumper as an object; ignore that his legs are in front of him when he lands.)July 7, 2013 by jake

physics
an olympic long jumper i capable of jumping 8.0 m. Assuming hi horizonal speed is 9.1 m/s as he leaves the ground, how long is he in the air and how high doe he go? Assume that he lands standing upright that is, the same way he left the ground.January 5, 2012 by taylor

Physics
A long jumper leaves the ground at an angle of 15.1◦ to the horizontal and at a speed of 10.9 m/s. How far does he jump? The acceleration due to gravity is 9.8 m/s2 . Answer in units of m 010 (part 2 of 2) 10.0 points What maximum height does he reach? Answer in units of mJanuary 23, 2013 by Patrick

physics
A 53 kg bungee jumper jumps from a bridge. She is tied to a bungee cord whose unstretched length is 13 m, and falls a total of 35 m. Calculate the spring stiffness constant k of the bungee cord, assuming Hooke's law applies. April 6, 2011 by Cara

physics
Mayan kings and many school sports teams are named for the puma, cougar, or mountain lion Felis concolor, the best jumper among animals. It can jump to a height of 13 ft when leaving the ground at an angle of 40.4°. With what speed, in SI units, does it leave the ground to ...January 24, 2010 by Michelle